An almost from Barty was good enough for Philip. "We will keep this quiet," Philip said. "I'll inform Frank and Wilbur. Thank you, Barty. Why don't you go back now and get some sleep. I can take it from here until the others arrive."
He wouldn't write the Prince's Father the King and inform him that his son had deflowered his beloved servant at last. The King had enough to deal with. Riku couldn't conceive the Prince's child, no matter how hard they tried, so what was the harm in keeping this secret for the Prince so that he could inform his family on his own.
"They aren't even awake and already I feel a headache starting," Philip said ruefully.